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[RFC,3/3] ARM: dts: Use frequency scaling for MSHC

Message ID 1421054585-9032-4-git-send-email-k.kozlowski@samsung.com (mailing list archive)
State New, archived
Headers show

Commit Message

Krzysztof Kozlowski Jan. 12, 2015, 9:23 a.m. UTC 
Enable frequency scaling on MSHC to reduce energy consumption. In idle
this reduced energy consumption by 1.0% (from 27.16 mA to 26.89 mA).

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
---
 arch/arm/boot/dts/exynos3250-rinato.dts | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/arch/arm/boot/dts/exynos3250-rinato.dts b/arch/arm/boot/dts/exynos3250-rinato.dts
index e53f62f216ba..aad09109fdbc 100644
--- a/arch/arm/boot/dts/exynos3250-rinato.dts
+++ b/arch/arm/boot/dts/exynos3250-rinato.dts
@@ -493,6 +493,7 @@ 
 	vmmc-supply = <&ldo12_reg>;
 	clock-frequency = <100000000>;
 	clock-freq-min-max = <400000 100000000>;
+	frequency-scaling;
 	samsung,dw-mshc-ciu-div = <1>;
 	samsung,dw-mshc-sdr-timing = <0 1>;
 	samsung,dw-mshc-ddr-timing = <1 2>;